Cesium carbonate → HCID 117843135, compound

HRID 2209073Notes

Reaction equation

HRID 2209073 reaction equation
Br[CH:2]1[CH2:5][CH2:4][CH2:3]1.[CH3:6][O:7][C:8]1[CH:9]=[C:10]([C:16]2[N:21]=[C:20]([O:22][C@@H:23]([C@H:25]3[CH2:29][NH:28][C:27](=[O:30])[CH2:26]3)[CH3:24])[C:19]3[NH:31][CH:32]=[N:33][C:18]=3[CH:17]=2)[CH:11]=[CH:12][C:13]=1[O:14][CH3:15].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C.C(OCC)(=O)C>[CH:2]1([N:31]2[C:19]3[C:20]([O:22][C@@H:23]([C@H:25]4[CH2:29][NH:28][C:27](=[O:30])[CH2:26]4)[CH3:24])=[N:21][C:16]([C:10]4[CH:11]=[CH:12][C:13]([O:14][CH3:15])=[C:8]([O:7][CH3:6])[CH:9]=4)=[CH:17][C:18]=3[N:33]=[CH:32]2)[CH2:5][CH2:4][CH2:3]1

Participants

6

Reactant 3

HCID 10796Cesium carbonateHCID 78110BromocyclobutaneHCID 178488441HCID 178488441, compound

Product 1

HCID 117843135HCID 117843135, compound

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

Bromocyclobutane (18 mg, 0.137 mmol) was added to a mixture of (R)-4-((R)-1-(6-(3,4-dimethoxyphenyl)-3H-imidazo[4,5-c]pyridin-4-yloxy)ethyl)pyrrolidin-2-one 3.09 (50 mg, 0.131 mmol) and cesium carbonate (127 mg, 0.392 mmol) in 5 mL of DMF at room temperature. Reaction mixture was heated at 80° C. in a microwave reactor for one hour. Reaction mixture was taken up in ethyl acetate and washed with saturated NaHCO3 (aq) and brine. The separated organic layers were dried (MgSO4), filtered, and concentrated under reduced pressure. Residues were purified via reverse phase chromatography to yield (R)-4-((R)-1-(3-cyclobutyl-6-(3,4-dimethoxyphenyl)-3H-imidazo[4,5-c]pyridin-4-yloxy)ethyl)pyrrolidin-2-one 3.27.

Workup

  1. customReaction mixture
  2. customReaction mixture
  3. washwashed with saturated NaHCO3 (aq) and brine
  4. dry with materialThe separated organic layers were dried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customResidues were purified via reverse phase chromatography

Sources & evidence

ORD record
ord-44580f456a7842dfaff71eac34a6b44e
Source dataset
uspto-grants-2016_06
Patent number
US09376441B2

Reaction notes

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